videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including BCN3D+ - Your Open Source 3D Printer, BCN3D Stories - BCN3D+ Printer in Telefónica I+D, BCN3D Technologies - The BCN3D Printer Announcement